 How to activate my plan and write backup. On the top right corner of the program, click on your profile name. From the drop-down menu, click on Activate plan. For purchase ID, go to your email account that you registered with write backup. You can find the purchase email by searching for SIST week on search menu. Once you have located the email, open it to find your purchase order ID. Copy the registration key from the email. Go back to write backup activation window. On the following screen, paste your purchase order ID number and click the activate plan button. That's it your subscription has successfully been activated. For more information or questions please email us support at sistweek.com